An astronomer is a guest speaker at your school. She states that iron is the very last product in stellar fusion. Why would she say that? Why wouldn’t elements in stars fuse to make larger atoms than iron? select one:
a. The star’s core has no more room left in the interior to fuse larger nuclides

b. It takes much more heat than the star has in its core to fuse iron with another atom.

c. Iron has a tightly bound nucleus, and atoms larger than iron are less stable and tend to undergo nuclear fission.

d. Iron is a metal, and metals cannot undergo fusion.

we need the questions , i may then you.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

it is b that is the answer.

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.